Select your Sign-in and security preferences.
Note If this is not your console, you may want to select Lock it down to require a password to sign in. That way, if you want to leave your account on this console for future use, no one else will be able to use it.

Check out how you look on Xbox, and then select Next.

Choose your color, and then select Next.
Note The preference that you're currently using at home appears with a checked box.

Press the Xbox button to open the guide, and then select Home to return to the Home screen.

Scroll left from Home, find and select your gamertag, and then select Sign in.

When you're finished playing, if you haven't saved your password on this console, you can simply sign out. The next time that you use this console, you'll need to sign in with your Microsoft account credentials.